Global Patent Index - EP 0310671 B1

EP 0310671 B1 19930825 - NUMERICAL CONTROL METHOD CAPABLE OF VARIABLY SETTING POSITIONING PRECISION

Title (en)

NUMERICAL CONTROL METHOD CAPABLE OF VARIABLY SETTING POSITIONING PRECISION

Publication

EP 0310671 B1 19930825 (EN)

Application

EP 88901926 A 19880219

Priority

JP 3919587 A 19870224

Abstract (en)

[origin: WO8806752A1] A numerical control method capable of machining a work with a required accuracy at high speeds. After the start of pulse distribution, it is discriminated (S12, S13) whether both a block being executed in an NC program and the next block both include feed instructions, and imposition values (A, B) corresponding to the discriminated result are stored in a register (C) (S14, S15). When a deviation ($g(e)x, $g(e)y, $g(e)z) between a desired amount of movement and an actual amount of movement becomes smaller than a register value (C) in relation to the three control axes, the control of positioning for the block is finished and the execution of the next block is started (S10).

IPC 1-7

G05B 19/18

IPC 8 full level

G05B 19/4155 (2006.01); G05B 19/404 (2006.01); G05B 19/408 (2006.01)

CPC (source: EP US)

G05B 19/404 (2013.01 - EP US); G05B 19/408 (2013.01 - EP US); G05B 2219/34388 (2013.01 - EP US); G05B 2219/37617 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 8806752 A1 19880907; DE 3883471 D1 19930930; DE 3883471 T2 19931223; EP 0310671 A1 19890412; EP 0310671 A4 19911113; EP 0310671 B1 19930825; JP S63206804 A 19880826; US 4949025 A 19900814

DOCDB simple family (application)

JP 8800179 W 19880219; DE 3883471 T 19880219; EP 88901926 A 19880219; JP 3919587 A 19870224; US 24539588 A 19880811